Slightly OT: I had my 'crackbook' since 2007, every 6-9 months i have had to replace the top case, always done free of charge at my nearest apple store (50 mile round trip) a few weeks ago i noticed cracks again, and upon closer inspection the bezel around the screen was cracked too, now i use my macbook every day but i take good care of it, and the cracks still developed, decided to ring apple because i was worried that soon they will not be making top cases for the 2007 models (has apple icon on command button) i explained everything to the Rep, he put me on hold whilst he spoke to a senior advisor, then i was passed to a customer relations manager, they were lovely and took account of the times i had been in with repairs, the distance travelled and the inconvienience (plus my TC had gone kaput and was being replaced with data transfer) so they infomed me that (after seeing the pictures of the cracks) they could replace my 2007 macbook with a new 2010 macbook unibody, fantastic! Although it didn't have firewire (i have a few HDD's which run on firewire) so they gave me a 13" MBP 😱
Fantastic customer service from apple, the new MBP runs like a dream, loving it!